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/*
* include/linux/serial.h
*
* Copyright (C) 1992 by Theodore Ts'o.
*
* Redistribution of this file is permitted under the terms of the GNU
* Public License (GPL)
*/
#ifndef _LINUX_SERIAL_H
#define _LINUX_SERIAL_H
#include <uapi/linux/serial.h>
#include <uapi/linux/serial_reg.h>
#define UART_IER_ALL_INTR (UART_IER_MSI | \
UART_IER_RLSI | \
UART_IER_THRI | \
UART_IER_RDI)
/* Helper for dealing with UART_LCR_WLEN* defines */
#define UART_LCR_WLEN(x) ((x) - 5)
/* FIFO and shifting register empty */
#define UART_LSR_BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
static inline bool uart_lsr_tx_empty(u16 lsr)
{
return (lsr & UART_LSR_BOTH_EMPTY) == UART_LSR_BOTH_EMPTY;
}
#define UART_MSR_STATUS_BITS (UART_MSR_DCD | \
UART_MSR_RI | \
UART_MSR_DSR | \
UART_MSR_CTS)
/*
* Counters of the input lines (CTS, DSR, RI, CD) interrupts
*/
struct async_icount {
__u32 cts, dsr, rng, dcd, tx, rx;
__u32 frame, parity, overrun, brk;
__u32 buf_overrun;
};
#include <linux/compiler.h>
#endif /* _LINUX_SERIAL_H */
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